Cometic C5645-060 MLS Cylinder Head Gasket GM Bore - LT1/LT4 Gen-2 4.040 060

The Cometic C5645-060 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1/LT4 Generation 2 Small Block V8 engines. This high-performance gasket features a 4.040-inch bore diameter and a compressed thickness of .060 inches, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
• 4.040-inch bore diameter accommodates stock and slightly overbored cylinders
• .060-inch compressed thickness allows for precise compression ratio tuning
• Engineered specifically for GM LT1 and LT4 Generation 2 Small Block V8 engines (1992-1997)
• Embossed stainless steel layers with advanced coating technology resist combustion gases and coolant leakage
• No retorque required after installation

Cometic MLS gaskets are manufactured using multiple layers of stainless steel with proprietary coatings that ensure maximum sealing performance. The gasket's design compensates for thermal expansion and engine movement, making it an excellent choice for street performance, racing, and forced induction applications. Each gasket is precision-cut to OEM specifications while offering enhanced durability over stock gaskets.